#define _CRT_SECURE_NO_WARNINGS 1
#include <stdio.h>

void Swap(int* i, int* j)
{
	int tmp = *i;
	*i = *j;
	*j = tmp;
}
int main()
{
	int a = 0;
	int b = 0;
	scanf("%d %d", &a, &b);
	Swap(&a, &b);
	printf("%d %d\n", a, b);
	return 0;
}